{"id":11450,"date":"2026-05-28T01:28:32","date_gmt":"2026-05-28T01:28:32","guid":{"rendered":"https:\/\/8657085.xyz\/?p=11450"},"modified":"2026-05-28T01:28:32","modified_gmt":"2026-05-28T01:28:32","slug":"hubble-reveals-a-subtle-starry-swarm-in-distant-dwarf-galaxy-eso-490-017","status":"publish","type":"post","link":"https:\/\/8657085.xyz\/?p=11450","title":{"rendered":"Hubble Reveals a Subtle Starry Swarm in Distant Dwarf Galaxy ESO 490-017"},"content":{"rendered":"<p> <div style=\"display: grid; grid-template-columns: 300px 160px; gap: 2px; width: 460px; background: #eee; padding: 2px;\">\r\n\r\n  <!-- \u6574\u884c\u5bbd\u5e7f\u544a -->\r\n  <div style=\"grid-column: 1\/-1; width: 460px; height: 250px; background: #ccc; display: grid; place-items: center;\">\r\n  <script async type=\"application\/javascript\" src=\"https:\/\/a.magsrv.com\/ad-provider.js\"><\/script> \r\n <ins class=\"eas6a97888e2\" data-zoneid=\"5876674\"><\/ins> \r\n <script>(AdProvider = window.AdProvider || []).push({\"serve\": {}});<\/script>\r\n  <\/div>\r\n  <div style=\"grid-column: 1\/-1; width: 460px; height: 90px; background: #ccc; display: grid; place-items: center;\">\r\n  <script async type=\"application\/javascript\" src=\"https:\/\/a.magsrv.com\/ad-provider.js\"><\/script> \r\n <ins class=\"eas6a97888e2\" data-zoneid=\"5876676\"><\/ins> \r\n <script>(AdProvider = window.AdProvider || []).push({\"serve\": {}});<\/script>\r\n  <\/div>\r\n\r\n  <!-- \u5de6\u4fa7\u7ad6\u6392 -->\r\n  <div style=\"height: 250px; background: #ccc; display: grid; place-items: center;\">\r\n  <script async type=\"application\/javascript\" src=\"https:\/\/a.magsrv.com\/ad-provider.js\"><\/script> \r\n <ins class=\"eas6a97888e2\" data-zoneid=\"5876672\"><\/ins> \r\n <script>(AdProvider = window.AdProvider || []).push({\"serve\": {}});<\/script>\r\n  <\/div>\r\n  <div style=\"height: 500px; background: #ccc; display: grid; place-items: center;\">\r\n  <script async type=\"application\/javascript\" src=\"https:\/\/a.magsrv.com\/ad-provider.js\"><\/script> \r\n <ins class=\"eas6a97888e2\" data-zoneid=\"5876680\"><\/ins> \r\n <script>(AdProvider = window.AdProvider || []).push({\"serve\": {}});<\/script>\r\n  <\/div>\r\n\r\n  <!-- \u53f3\u4fa7\u6469\u5929\u697c\uff08\u548c\u5de6\u4fa7\u5b8c\u5168\u5bf9\u9f50\uff09 -->\r\n  <div style=\"grid-row: 3\/5; height: 750px; background: #ccc; display: grid; place-items: center;\">\r\n  <script async type=\"application\/javascript\" src=\"https:\/\/a.magsrv.com\/ad-provider.js\"><\/script> \r\n <ins class=\"eas6a97888e2\" data-zoneid=\"5876678\"><\/ins> \r\n <script>(AdProvider = window.AdProvider || []).push({\"serve\": {}});<\/script>\r\n  <\/div>\r\n  \r\n  <script async type=\"application\/javascript\" src=\"https:\/\/a.magsrv.com\/ad-provider.js\"><\/script> \r\n <ins class=\"eas6a97888e6\" data-zoneid=\"5876682\"><\/ins> \r\n <script>(AdProvider = window.AdProvider || []).push({\"serve\": {}});<\/script>\r\n<\/div><br \/>\n<\/p>\n<div>\n<p><img decoding=\"async\" src=\"https:\/\/images.techeblog.com\/wp-content\/uploads\/2026\/05\/27094029\/hubble-dwarf-galaxy-eso-490-017.jpg\" alt=\"Hubble Dwarf Galaxy ESO 490-017\" width=\"960\" height=\"640\"\/><br \/>NASA released a new image from the Hubble Space Telescope that brings a modest galactic resident into view. ESO 490-017 lies about 23 million light-years away in the constellation Canis Major. The galaxy spans roughly 12,000 light-years from one side to the other and belongs to the dwarf irregular category, a group whose stars and gas sit in loose, disorganized arrangements rather than neat spirals or bright central cores.<\/p>\n<p><span id=\"more-244561\"\/><br \/><img decoding=\"async\" src=\"https:\/\/images.techeblog.com\/wp-content\/uploads\/2026\/05\/27094020\/hubble-dwarf-galaxy-eso-490-017-1.jpg\" alt=\"Hubble Dwarf Galaxy ESO 490-017\" width=\"1280\" height=\"1280\"\/><br \/>The galaxy stretches across a portion of the frame as a gentle smattering of twinkling lights, but because its brightness is so low, the stars spread out into a soft hazy patch that is just fading into the surrounding darkness, rather than having sharp edges or tight clumps like when you can see them up close. As a result, it resembles a dim swarm rather than a bright, solid object. Then, in the foreground, cut straight across the scene are a handful of bright stars close to us, as they are sharp and stand out quite clearly, each with a straight diffraction spike running right through its center. These spikes appear when light from a star reflects off the optics in the telescope, creating a beacon that attracts the eye in<\/p>\n<div class=\"aawp\">\n<div class=\"aawp-product aawp-product--horizontal aawp-product--ribbon aawp-product--sale\" data-aawp-product-asin=\"B0CGY3ZB29\" data-aawp-product-id=\"235894\" data-aawp-tracking-id=\"tec02e-20\" data-aawp-product-title=\"LEGO Technic Planet Earth and Moon in Orbit Building Set Outer Space Birthday Gift for 10 Year Olds Solar System Toy for Imaginative Independent Play Room D\u00e9cor for Boys &amp; Girls 42179\">\n<p>    <span class=\"aawp-product__ribbon aawp-product__ribbon--sale\">Sale<\/span><\/p>\n<div class=\"aawp-product__thumb\">\n<p>            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41uDAeZEUVL._SL160_.jpg\" alt=\"LEGO Technic Planet Earth and Moon in Orbit Building Set, Outer Space Birthday Gift for 10 Year Olds...\"\/><\/p><\/div>\n<div class=\"aawp-product__content\">\n<p>            LEGO Technic Planet Earth and Moon in Orbit Building Set, Outer Space Birthday Gift for 10 Year Olds&#8230;        <\/p>\n<div class=\"aawp-product__description\">\n<ul>\n<li>Interactive model \u2013 Inspire kids to build a representation of the Earth, Sun and Moon in orbit with this LEGO Technic Planet Earth and Moon in Orbit&#8230;<\/li>\n<li>Educational space toy \u2013 Kids can turn the crank to see how the Earth and the Moon orbit around the Sun<\/li>\n<li>Includes months and moon phases \u2013 This solar system toy includes printed details, like the month and moon phases to help kids see how the Earth\u2019s&#8230;<\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<\/div>\n<\/div>\n<p>\nGoing a little further back, you\u2019ll see a massive black expanse filled with several smaller things in tones of red, orange, and brown. Many of these tiny specks begin to resolve into spiral shapes that can be seen from a distance, and the colors they produce really add depth to the overall scene, as they are a combination of how far away they are and the specific wavelengths picked up in the observations. So they work together to transform the backdrop into a rich field of distant galaxies, adding to the overall appeal of the composition.<\/p>\n<p><iframe title=\"A Journey To The Dwarf Galaxies Orbiting The Milky Way | Space Documentary 2025\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/ZbBIpr5n_f0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><noscript><iframe title=\"A Journey To The Dwarf Galaxies Orbiting The Milky Way | Space Documentary 2025\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/ZbBIpr5n_f0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/noscript><br \/>Astronomers took this image as part of a research to study how galaxies and galaxy clusters move on a huge scale. This is all due to the gravity of clumps of matter in space, which tugs the systems along trajectories known as cosmic flow. If you want to get precise maps of such movements, you must first understand how far away nearby galaxies are, which Hubble did here. So, how did it get the precision it required? Well, by focusing on some specific stars within the galaxy ESO 490-017, as low mass red giants at a certain stage of their lives all tend to be about the same brightness, making them useful as steady reference points, the researchers were able to calculate the galaxy\u2019s distance with fairly solid accuracy by comparing that known brightness to how faint those stars appear in the image. As an added bonus, all of this data is saved in a much larger archive that tracks star populations in many other neighboring galaxies, so for future reference\u2026<\/p>\n<\/p><\/div>\n<p><!-- \u603b\u5bb9\u5668\uff1a\u6700\u5927\u5bbd908px Grid\u7d27\u51d1\u5e03\u5c40 -->\r\n<div style=\"display: grid; grid-template-columns: 728px 160px; gap:2px; width:908px; background:#eee; padding:2px;\">\r\n\r\n  <!-- \u901a\u680f\u9876\u90e8\uff1a\u6700\u5927\u6a2a\u5e45 908x258 \u8de8\u6574\u884c -->\r\n  <div style=\"grid-column:1\/-1; height:258px; background:#ff6b6b; display:grid; place-items:center;\">\r\n    <!-- JuicyAds v3.0 -->\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async src=\"https:\/\/poweredby.jads.co\/js\/jads.js\"><\/script>\r\n<ins id=\"1114307\" data-width=\"908\" data-height=\"258\"><\/ins>\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async>(adsbyjuicy = window.adsbyjuicy || []).push({'adzone':1114307});<\/script>\r\n<!--JuicyAds END-->\r\n  <\/div>\r\n\r\n  <!-- \u7b2c\u4e8c\u901a\u680f\uff1a728\u00d790 \u901a\u680f -->\r\n  <div style=\"grid-column:1\/-1; height:90px; background:#4ecdc4; display:grid; place-items:center;\">\r\n    <!-- JuicyAds v3.0 -->\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async src=\"https:\/\/poweredby.jads.co\/js\/jads.js\"><\/script>\r\n<ins id=\"1114300\" data-width=\"728\" data-height=\"90\"><\/ins>\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async>(adsbyjuicy = window.adsbyjuicy || []).push({'adzone':1114300});<\/script>\r\n<!--JuicyAds END-->\r\n  <\/div>\r\n\r\n  <!-- \u5de6\u4fa7\u4e3b\u680f\uff1a\u591a\u5e7f\u544a\u5806\u53e0 -->\r\n  <div style=\"display:grid; gap:2px;\">\r\n    <div style=\"height:60px; background:#45b7d1; display:grid; place-items:center;\">\r\n\t<!-- JuicyAds v3.0 -->\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async src=\"https:\/\/poweredby.jads.co\/js\/jads.js\"><\/script>\r\n<ins id=\"1114308\" data-width=\"468\" data-height=\"60\"><\/ins>\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async>(adsbyjuicy = window.adsbyjuicy || []).push({'adzone':1114308});<\/script>\r\n<!--JuicyAds END-->\r\n\t<\/div>\r\n    <div style=\"height:250px; background:#ffe066; display:grid; place-items:center;\">\r\n\t<!-- JuicyAds v3.0 -->\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async src=\"https:\/\/poweredby.jads.co\/js\/jads.js\"><\/script>\r\n<ins id=\"1114299\" data-width=\"300\" data-height=\"250\"><\/ins>\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async>(adsbyjuicy = window.adsbyjuicy || []).push({'adzone':1114299});<\/script>\r\n<!--JuicyAds END-->\r\n\t<\/div>\r\n    <div style=\"height:250px; background:#ff9ecd; display:grid; place-items:center;\">\r\n\t<!-- JuicyAds v3.0 -->\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async src=\"https:\/\/poweredby.jads.co\/js\/jads.js\"><\/script>\r\n<ins id=\"1114305\" data-width=\"250\" data-height=\"250\"><\/ins>\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async>(adsbyjuicy = window.adsbyjuicy || []).push({'adzone':1114305});<\/script>\r\n<!--JuicyAds END-->\r\n\t<\/div>\r\n    <div style=\"height:139px; background:#c792ea; display:grid; place-items:center;\">\r\n\t<!-- JuicyAds v3.0 -->\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async src=\"https:\/\/poweredby.jads.co\/js\/jads.js\"><\/script>\r\n<ins id=\"1114302\" data-width=\"133\" data-height=\"139\"><\/ins>\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async>(adsbyjuicy = window.adsbyjuicy || []).push({'adzone':1114302});<\/script>\r\n<!--JuicyAds END-->\r\n\t<\/div>\r\n    <div style=\"height:125px; background:#91e7ac; display:grid; place-items:center;\">\r\n\t\r\n<!-- JuicyAds v3.0 -->\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async src=\"https:\/\/poweredby.jads.co\/js\/jads.js\"><\/script>\r\n<ins id=\"1114303\" data-width=\"125\" data-height=\"125\"><\/ins>\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async>(adsbyjuicy = window.adsbyjuicy || []).push({'adzone':1114303});<\/script>\r\n<!--JuicyAds END-->\r\n\t<\/div>\r\n  <\/div>\r\n\r\n  <!-- \u53f3\u4fa7\u7ad6\u680f\uff1a160\u00d7600 \u6574\u5217\u9ad8\u5e7f\u544a -->\r\n  <div style=\"grid-row:3\/8; height:600px;  display:grid; place-items:center;\">\r\n    <!-- JuicyAds v3.0 -->\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async src=\"https:\/\/poweredby.jads.co\/js\/jads.js\"><\/script>\r\n<ins id=\"1114301\" data-width=\"160\" data-height=\"600\"><\/ins>\r\n<script type=\"text\/javascript\" data-cfasync=\"false\" async>(adsbyjuicy = window.adsbyjuicy || []).push({'adzone':1114301});<\/script>\r\n<!--JuicyAds END-->\r\n  <\/div>\r\n\r\n<\/div><br \/>\n<br \/> Hubble Reveals a Subtle Starry Swarm in Distant Dwarf Galaxy ESO 490-017<br \/>\n<br \/>#Hubble #Reveals #Subtle #Starry #Swarm #Distant #Dwarf #Galaxy #ESO<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NASA released a new image from the Hubble Space Telescope that brings a modest galactic&#8230;<\/p>\n","protected":false},"author":1,"featured_media":11451,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[2656,10957,10958,1780,1773,653,10602,10956,3476],"class_list":["post-11450","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","tag-distant","tag-dwarf","tag-eso","tag-galaxy","tag-hubble","tag-reveals","tag-starry","tag-subtle","tag-swarm"],"featured_image_urls":{"full":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017.jpg",960,640,false],"thumbnail":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017-150x150.jpg",150,150,true],"medium":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017-300x200.jpg",300,200,true],"medium_large":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017-768x512.jpg",640,427,true],"large":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017.jpg",640,427,false],"1536x1536":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017.jpg",960,640,false],"2048x2048":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017.jpg",960,640,false],"covernews-slider-full":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017.jpg",960,640,false],"covernews-slider-center":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017-800x500.jpg",800,500,true],"covernews-featured":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017.jpg",960,640,false],"covernews-medium":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017-540x340.jpg",540,340,true],"covernews-medium-square":["https:\/\/8657085.xyz\/wp-content\/uploads\/2026\/05\/hubble-dwarf-galaxy-eso-490-017-400x250.jpg",400,250,true]},"author_info":{"display_name":"admin","author_link":"https:\/\/8657085.xyz\/?author=1"},"category_info":"<a href=\"https:\/\/8657085.xyz\/?cat=8\" rel=\"category\">Tech<\/a>","tag_info":"Tech","comment_count":"0","_links":{"self":[{"href":"https:\/\/8657085.xyz\/index.php?rest_route=\/wp\/v2\/posts\/11450","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/8657085.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/8657085.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/8657085.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/8657085.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11450"}],"version-history":[{"count":0,"href":"https:\/\/8657085.xyz\/index.php?rest_route=\/wp\/v2\/posts\/11450\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/8657085.xyz\/index.php?rest_route=\/wp\/v2\/media\/11451"}],"wp:attachment":[{"href":"https:\/\/8657085.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11450"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/8657085.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11450"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/8657085.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}